Energy volume hedged during period.

No definition available.

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- Definition

Monthly energy volume hedged.

+ References

No definition available.

+ Details

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- Definition

Percentage of expected natural gas production covered by derivative collars.

+ References

No definition available.

+ Details

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- Definition

Percentage Of Expected Natural Gas Production Covered By Fixed Price Hedges

+ References

No definition available.

+ Details

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- Definition

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

The strike price on the price risk option contract such as a put option or a call option.

+ References

No definition available.

+ Details

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- Definition

Fixed price related to the price risk swap derivative.

+ References

No definition available.

+ Details

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Derivative and Hedging Financial Instruments - Additional Information (Detail)	1 Months Ended						3 Months Ended
	Nov. 30, 2018 MMBTU	Apr. 30, 2015 MMBTU	Jan. 31, 2015 MMBTU	Dec. 31, 2014 USD ($) MMBTU	Jul. 31, 2014 MMBTU	Jun. 30, 2013 MMBTU	Mar. 31, 2015 USD ($) MMBTU	Dec. 23, 2014 $ / MMBTU	Aug. 20, 2014 $ / MMBTU	May. 21, 2014 $ / MMBTU	May. 21, 2013	May. 09, 2013 $ / MMBTU
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Costless collars covering percentage on its expected natural gas production												85.00%
Total MMBtu hedged over the period							3.4
Monthly volumes declining of MMBtu					444,534	207,000
Fixed price covering percentage on its expected natural gas production								50.00%	90.00%		90.00%
Maximum [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Monthly volumes declining of MMBtu			326,700	266,891
Scenario, Forecast [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Monthly volumes declining of MMBtu	171,940
Scenario, Forecast [Member] \| Minimum [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Monthly volumes declining of MMBtu	45,854
Morgan Stanley Fixed I [Member] \| July 2014 to November 2018 [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total MMBtu hedged over the period							13,932,171
Morgan Stanley Fixed II [Member] \| January 2015 To November 2014 [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total MMBtu hedged over the period							10,499,038
Morgan Stanley Fixed III [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total MMBtu hedged over the period							7,301,209
Morgan Stanley Fixed III [Member] \| Scenario, Forecast [Member] \| Minimum [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Monthly volumes declining of MMBtu	104,084
Energy Related Derivative [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value of commodity contracts \| $				$ 410,389			$ 150,331
Price Risk Derivative [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value of commodity contracts \| $				(716,488)			(987,964)
Price Risk Derivative [Member] \| July 2014 to November 2018 [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value of commodity contracts \| $				5,878,302			10,421,976
Price Risk Derivative [Member] \| January 2015 To November 2014 [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value of commodity contracts \| $				$ 1,941,465			$ 3,274,328
Put Option [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Strike Price of Costless Collar \| $ / MMBTU												4.00
Call Option [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Strike Price of Costless Collar \| $ / MMBTU												4.28
Subsequent Event [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Monthly volumes declining of MMBtu		113,000
Swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Strike Price of Costless Collar \| $ / MMBTU									3.92
Strike Price of fixed price hedges \| $ / MMBTU								(1.12)
Swap [Member] \| Maximum [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Strike Price of Costless Collar \| $ / MMBTU										4.38
Swap [Member] \| Minimum [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Strike Price of Costless Collar \| $ / MMBTU										4.06